especially the index finger and thumb, and involves multiple nails. The width of the black line may also increase with age. A ...

But the lines were still there. Kennedy News & Media Tagliamonte went to a dermatologist, who told her the “discoloration at the base of my thumb nail ... this black line in my nail was coming ...

An Ohio mother-of-two made a life-saving discovery after she noticed black lines on her thumb while at a nail appointment. Michelle Tagliamonte, 58, first noticed the faint lines running ...

Michelle Tagliamonte, 58, spotted faint black lines on the nail of her her right thumb while getting a manicure in September last year. But when the marks hadn't grown out by her next nail session ...